PartNumber: None
The KP2202SGA is a high-performance quasi-resonant (QR) current-mode PWM controller designed for offline flyback AC-DC power supplies. It features an integrated high-voltage startup circuit, X-capacitor discharge function, and supports MOSFET and GaN power devices for high-frequency, high-efficiency power conversion. The controller operates in valley-switching mode with selectable switching frequencies of 140kHz, 300kHz, or 500kHz, enabling compact, high-performance charger and adapter designs. It also incorporates green-mode operation for ultra-low standby power (<30mW) and advanced EMI optimization
| Product group | Integrated Circuit (IC) |
|---|---|
| Package | SOP-8 |
| Model Number | KP2202SGA |
| Operating Mode | High-Frequency Quasi-Resonant (QR) Current-Mode PWM Controller for Offline Flyback Converters |
| Product Keywords | QR PWM Controller, Offline Flyback Controller, Current-Mode PWM Controller, AC-DC Power Controller, High-Frequency Controller |
| Protections/Features | High-Voltage Startup, Cycle-by-Cycle Over-Current Protection (OCP), Brown-In/Brown-Out Protection, Over-Temperature Protection (OTP), VDD Under-Voltage Lockout (UVLO), Green Mode, Valley Switching |
| Internal MOS | No (External MOSFET Drive) |
| Output Current | External MOSFET Dependent |
| Application Area | Fast Chargers, USB Power Adapters, AC-DC Power Supplies, Flyback Converters, Consumer Electronics Power Supplies |
